ASTROSAT CZTI

Data Quality Report

Orbit 13112

Creation date: 2024-06-27T16:36:24.578249
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C03_023T01_9000001930_13112cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13112cztM0_level2_quad_clean.evt
Size (bytes)487,163,52014,451,840
Size464.6 MB 13.8 MB
Events in quadrant A2,900,4736,686
Events in quadrant B4,016,3916,906
Events in quadrant C2,789,6356,806
Events in quadrant D4,647,9734,825

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125212
B0158732
C0121842
D0178412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5880240.408163%
B58803736.343537%
C5880100.170068%
D58804397.465986%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7076 5882 4 4 0.06% 0.07%
B 7076 5882 209 209 2.95% 3.55%
C 7076 5882 0 0 0.00% 0.00%
D 7076 5882 361 361 5.10% 6.14%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 57914 390.42 720 705 146.5
A 1 162 24339 161.29 720 705 146.5
A 15 223 12490 80.43 720 705 146.5
B 0 85 1069487 7925.07 709 692 134.9
B 3 64 142477 1051.33 709 692 134.9
B 12 111 15335 108.58 709 692 134.9
C 15 208 15545 89.46 709 714 165.8
C 0 207 8738 48.4 709 714 165.8
C 13 61 5187 26.98 709 714 165.8
D 1 52 1615368 9717.99 681 661 166.2
D 10 157 256381 1539.03 681 661 166.2
D 8 195 74333 443.39 681 661 166.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter